化工进展 ›› 2012, Vol. 31 ›› Issue (04): 933-937.

• 资源与环境工程 • 上一篇    下一篇

  三种典型医疗废物热解过程的差热分析

  马洪亭,王芳超,杨国利,郝夙枫,王明辉   

  1. 天津大学环境科学与工程学院,天津 300072
  • 收稿日期:2011-10-09 修回日期:2011-10-27 出版日期:2012-04-05 发布日期:2012-04-05
  • 通讯作者: 马洪亭

  Differential thermal analysis during the thermal decomposition of three typical medical wastes

  MA HongtingWANG FangchaoYANG GuoliHAO SufengWANG Minghui   

  1. School of Environmental Science and Technology,Tianjin University,Tianjin 300072,China
  • Received:2011-10-09 Revised:2011-10-27 Online:2012-04-05 Published:2012-04-05

摘要:   用TG-DTA差热热重联用分析仪在升温速率为20 ℃/min、高纯氮气流量为20 mL/min的气氛条件下对输液袋、卫生纸和注射器3种典型医疗废物试样进行了热解实验和差热分析。结果表明,几种试样热解过程均为吸热反应,而且实验测得的DTA曲线的形状比较复杂,对称性较差,基线偏移较大;在医疗废物的热解过程中,最大失重速率发生点的温度一般要比达到瞬时热平衡点的温度稍低。

关键词:  ,

Abstract:   The thermal decomposition and differential thermal analysis process of three typical medical wastes(infusion bag,toilet paper,injector)were experimentally investigated by using the TG-DTA apparatus,the samples were heated at 20℃/min in 20 mL/min nitrogen flow. The results show that the thermal decomposition of medical waste is a heat-absorption process. The curve shape is complex,and non-symmetric. There is a significant deviation in base line. The temperature for the maximum weight loss rate is lower than that for the instantaneous thermal balance.

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